THRIFT-5544: annotations_as_metadata java code gen param (#2553)

Add a java code generation parameter called "annotations_as_metadata" to
optionally include Thrift field annotations as metadata in the generated code.
diff --git a/lib/java/src/test/resources/JavaAnnotationTest.thrift b/lib/java/src/test/resources/JavaAnnotationTest.thrift
new file mode 100644
index 0000000..925a05d
--- /dev/null
+++ b/lib/java/src/test/resources/JavaAnnotationTest.thrift
@@ -0,0 +1,34 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+namespace java thrift.test.annotations
+
+struct OneOfEachBeansWithAnnotations {
+  1: bool boolean_field,
+  2: byte a_bite (compression = "false"),
+  3: i16 integer16 (must_be_postive = "true"),
+  4: i32 integer32,
+  5: i64 integer64,
+  6: double double_precision (nan_inf_allowed = "false"),
+  7: string some_characters,
+  8: binary base64,
+  9: list<byte> byte_list (non_empty = "true"),
+  10: list<i16> i16_list,
+  11: list<i64> i64_list
+}